How a Sanctioned Russian Insurer Fueled a 400-Sq-Km Oil Spill Disaster Off Oman

These delays were compounded by the fact that no conventional insurer was on the hook. A Kyiv School of Economics study found that 36.5% of the global tanker fleet — over 5,100 vessels — has no identifiable P&I insurance . Among vessels that carried Russian oil in 2024, the share with uncovered insurance is even higher, and roughly a third of tankers transiting the Baltic now operate with insurance from sanctioned Russian or Russian-affiliated providers instead of the traditional International Group system .

How the Delay Let the Spill Spread

While the sanctions waiver process dragged on, the oil leaked largely unchecked. The slick expanded from roughly 20 sq km in early August to an estimated 390–400 sq km (150 sq miles) by August 10, according to Oman's Environment Authority . Independent satellite analysts suggested the true area may be even larger, with oil spill specialist John Amos reviewing imagery that indicated a slick covering more than 2,000 sq km . By August 12, the oil had begun hitting up to 40 km (25 miles) of mainland coastline near Ras Madrakah and had already polluted Qibliyah Island inside the protected Hallaniyat Islands nature reserve . The International Maritime Organization confirmed the spill reached the mainland on that date .

Vessel and Cargo Condition Amid the Khareef Monsoon

The 274-metre, Cameroon-flagged vessel (built 2001) ran aground on rocks off Jazirat Al Qibliyyah after an explosion and fire on June 8 . It is carrying roughly 800,000 to 1 million barrels of Russian crude oil. By early August, 7 of 12 cargo tanks were reportedly leaking . Satellite imagery confirmed the vessel is "sinking deeper" on the rocks and structurally breaking up . The Khareef monsoon is now delivering 40-knot winds and 4-metre swells, creating unsafe conditions that affect vessel stability and make containment operations extremely hazardous . Ambrey's salvage team only boarded the vessel on August 13 to begin stabilization and oil transfer work amid these conditions .

The Broader Shadow Fleet Insurance Gap

This case crystallises a systemic vulnerability that extends far beyond a single ship:

• No conventional P&I cover: 36.5% of the global tanker fleet has no identifiable protection and indemnity insurance . For tankers with no ties to oil price cap coalition countries, P&I providers can be identified for only 6.3% .
• Shift to sanctioned providers: Russian P&I insurers like AlfaStrakhovanie and Ingosstrakh disclose coverage for only 220 tankers total, creating a parallel, unregulated risk pool that Western sanctions are designed to target yet cannot effectively police .
• No pollution compensation fund access: Because the vessel is uninsured by IG clubs and flagged to a non-party state, the IOPC Funds have refused to cover cleanup costs, citing sanctions complications and characterizing elements of the incident as an "act of war" .
• Costs fall on the coastal state: With no effective insurance, no functioning shipowner stepping forward, and no international compensation fund, the financial burden falls entirely on Oman and its protected marine ecosystems .

The Caroline Bezengi is not an anomaly — it is a warning. As Western insurers and service providers exited Russian trades after 2022, parallel institutions emerged to fill the gap, but without the liability frameworks, pollution-response protocols, or transparency that the traditional system provides . The next casualty of this parallel system may not wait for sanctions waivers at all.